The DOB you provided on your tax return must match what is currently on file with the IRS and Social Security Administration.
Fix #1: Sign into your PriorTax account to double check that the DOB you provided is correct. If not, you can update this information from your rejection status page and resubmit for filing.
Fix #2: If the DOB you provided is correct, you may need to paperfile your return this year. You can print it from your PriorTax account. Then, just sign and mail it to the IRS. You should also contact the Social Security Administration to make sure that the DOB they have on file for you is correct.